Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Correct comment typo.

Add support for TACACS+ accounting to libtacplus(3).

Submitted by: Michael Pounov misho@aitbg.com
OKed by: emaste

In tac_get_av_value() empty attributes should be handled like 0-length
strings rather than unset strings.
Fix the present wrong behaviour.

Obtained from: Sandvine Incorporated
Reviewed by: emaste
Sponsored by: Sandvine Incorporated
MFC: 1 week

Fix most cases where the address of an int is passed to a function expecting a
socklen_t * argument.

Enhance TACACS+ library to fully support authorization requests in
addition to existing authentication. No change to the existing
APIs to preseve both binary and API compatibility, so I am not
inclined to bump the library version number unless someone thinks
this is necessary.

Submitted by: Paul Fraley <fraley@juniper.net>
MFC after: 2 weeks

Add __FBSDID()s to libtacplus

strtok -> strsep (no strtok allowed in libraries)

Fix error message that was too hastily cut&pasted from libradius.

Submitted by: Alexey Zelkin <phantom@cris.net>

This commit was generated by cvs2svn to compensate for changes in r41120,
which included commits to RCS files with non-trunk default branches.

Initial import of TACACS+ client library donated by Juniper Networks, Inc.